Electric Dirt Bike Performance Builds
The Ultimate Powertrain Upgrade
The highest-performing electric dirt bikes are built around a balanced powertrain. Matching the controller, motor and battery allows every component to work together, delivering stronger acceleration, higher sustained power and more dependable performance.
Shock Moto's electric dirt bike performance builds bring together compatible high-output components for riders wanting to move beyond individual upgrades and build a complete performance-focused powertrain.
We offer both the Ventus AETOS V9600 GEN2 Pro and GEN2 Max controllers, allowing the controller platform to be matched to the battery voltage and performance requirements of the build.
Builds can be supplied as components or professionally installed, configured and tuned through our Wellington workshop.
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Matched Components
Controller, motor and battery combinations selected to operate as one complete system rather than unrelated upgrades.
Maximum Performance
Designed for riders who want to move beyond factory power restrictions and access the full capability of compatible upgraded components.
Matched Voltage
Controller voltage is selected to suit the battery and overall build, including 72V Pro and 96V Max configurations.
Professional Configuration
Controller settings can be matched to the battery, motor, gearing, riding conditions and rider goals.
Workshop Installation
Supply, installation, wiring checks and initial configuration are available through Shock Moto.
Built Around Your Bike
We assess your bike model, fitment and existing components before recommending a Beast or Ryuga upgrade.
Choose Your Ventus Motor
Beast and Ryuga give you two strong motor paths for a performance build. The right choice depends on your bike, the power you want and the battery and controller that can safely support it. Both ranges are serious upgrades; the Ryuga adds hairpin construction and a higher motor power ceiling for builds designed around it.
High-output performance
A strong choice for riders wanting a responsive, powerful and well-matched upgrade. Choose the BST-28KW for compatible lightweight eMoto platforms or the BST-48KW for the Surron Ultra Bee.
- BST-28KW: 28kW motor rating
- BST-48KW: 48kW motor rating
- Advanced IPM motor design and IP67 protection
Hairpin motor performance
Designed for riders building around a higher motor power ceiling. Choose the RGA-52KW for compatible lightweight eMoto platforms or the RGA-81KW for the Surron Ultra Bee.
- RGA-52KW: up to 52.5kW motor rating at 96V
- RGA-81KW: up to 81kW motor rating at 96V
- Hairpin construction, ABZP encoder and IP67 protection
Compare Beast and Ryuga Motors
| Motor | Bike platform | Motor rating | Build direction |
|---|---|---|---|
| Beast BST-28KW | Light Bee X, Ventus One Plus, Talaria XXX and other confirmed fitments | 28kW | Strong, usable lightweight eMoto performance |
| Ryuga RGA-52KW | Light Bee, Ventus One Plus, Rerode R1, E Ride Pro and 79Bike | 38.4kW at 72V 52.5kW at 96V |
High-output lightweight eMoto build with a matched powertrain |
| Beast BST-48KW | Surron Ultra Bee | 48kW | Powerful Ultra Bee performance build |
| Ryuga RGA-81KW | Surron Ultra Bee | 60.3kW at 72V 81kW at 96V |
Extreme Ultra Bee build with supporting electrical and drivetrain upgrades |
Matching the Controller and Battery
The motor is one part of the powertrain. We select controller voltage and battery capability around the bike and target output, then configure the system within the safe limits of all its components.
AETOS V9600 GEN2 Pro
72V / 1200AOur controller option for suitable 72V builds. It can be paired with a compatible 72V performance battery and either motor range, subject to the motor, wiring and complete bike configuration.
A higher-rated Ryuga motor does not raise the output limit of a 72V battery. The complete build is configured around what the battery can safely supply.
AETOS V9600 GEN2 Max
96V / 960ADesigned for suitable 96V builds, including Ultra Bee configurations using the 96V Pegasus battery. Final motor and controller suitability depends on the required current, wiring, connectors and tune.
The Pegasus battery's peak capability is a battery specification; it does not establish the power output of a Beast or Ryuga build.
Ventus Performance Batteries
These are the two Ventus battery options we offer for matched builds. Choose the battery for your bike platform and system voltage, then confirm its discharge limits against the controller and motor you plan to use.
Ventus 28kW Performance Battery
72V / 51AhFor selected Surron Light Bee, Ventus One+, Talaria Sting and 79Bike builds. This battery is listed with up to 32kW peak battery capability, 250A continuous discharge and 450A peak discharge for up to 10 seconds.
A natural battery option to assess alongside the Beast 28kW and a suitable 72V controller. It can also be considered for a compatible Ryuga 52kW build, with output set within the battery's limits.
Ventus Pegasus Ultra Bee Battery
96V / 56AhDesigned for the Surron Ultra Bee, with up to 75kW peak battery capability and 5.25kWh of stored energy. It requires a suitable 96V controller; a high-voltage DC-to-DC converter is supplied for the bike's 12V systems.
An option to assess for a Beast 48kW or Ryuga 81kW Ultra Bee build. The Pegasus battery rating does not guarantee the Ryuga's 81kW motor rating can be achieved in this combination.
Choose the combination that suits your bike
Beast remains an excellent choice for a substantial upgrade. Ryuga offers additional motor capability when the rest of the system is designed to use it. Contact us with your bike model, model year, current components and performance goal so we can recommend an appropriate combination.
Why Upgrade the Complete Powertrain?
A controller, motor and battery each perform a different role. Upgrading one component can improve the bike, but it can also expose the limitations of another part of the system.
| Upgrade option | What changes | Best suited to | Potential limitation |
|---|---|---|---|
| Controller only | Improved tuning, throttle response, adjustability and available output. | Riders wanting better control without replacing the full system. | The factory motor or battery may restrict maximum available power. |
| Controller + motor | Greater motor capability and more aggressive performance potential. | Riders wanting a substantial upgrade while retaining the existing battery. | The factory battery may limit current and sustained output. |
| Complete performance build | Controller, motor and battery are selected as a matched system. | Riders chasing the highest supported performance while removing major factory bottlenecks. | Higher cost and greater need for correct installation, setup and component matching. |
Your Performance Build Path
Power is limited by the weakest component
A high-output controller cannot deliver its full potential if the battery cannot safely supply the required current. Likewise, a powerful battery cannot make a motor safely handle more power than it is designed for. Complete builds are intended to reduce those mismatches.
Understanding Peak Power and Real-World Performance
Peak power figures are useful when comparing performance components, but they do not tell the complete story. Maximum power, sustained power, acceleration and top speed are all different measures.
Peak Power
The highest short-duration output available from the battery, controller and motor combination. Peak power is most noticeable during hard acceleration.
Maximum Top Speed
The highest speed the bike may reach with suitable gearing and conditions. It should not be treated as a continuous cruising-speed rating.
Sustained Power
The output the system can maintain without exceeding battery, controller or motor temperature limits. This is normally lower than peak output.
Real-World Performance
Acceleration and rideability also depend on bike weight, torque, gearing, traction, suspension, tyres and rider control — not kilowatts alone.
Maximum speed is not continuous speed
Sustained high-speed riding creates continuous heat in the motor, controller, battery, wiring and drivetrain. Safe sustained performance depends on the selected tune, gearing, cooling, ambient temperature, battery charge and riding conditions.
Professional Installation and Setup
High-power electric dirt bike upgrades require more than simply bolting components onto the bike. Connections, wiring, battery compatibility, controller parameters, motor setup, gearing and the mechanical condition of the bike all need to be considered.
Shock Moto can supply, install and configure compatible performance powertrain components through our Wellington workshop. Each build can be discussed around the rider's intended terrain, experience, performance goals and preferred power delivery.
Planning a high-performance build?
Contact Shock Moto with your bike model, model year, current upgrades and target performance. We can help identify the correct AETOS controller, motor and battery combination and confirm installation requirements before ordering.
Frequently Asked Questions
Should I choose a Beast or Ryuga motor?
Beast 28kW and 48kW motors suit riders wanting a substantial, well-matched performance upgrade. Ryuga 52kW and 81kW hairpin motors offer higher motor capability for builds designed around the required controller, battery and wiring. We can recommend a motor after checking your bike and performance goals.
Will a Ryuga motor make my bike produce 52kW or 81kW?
No. Those are motor ratings under specified conditions, including 96V for the highest figures. Complete-bike output also depends on battery discharge capability, controller settings, wiring, gearing and the selected tune.
Why is the 72V battery called 28kW if its peak specification says 32kW?
“28kW Performance Battery” is the product name on our store. Its published specification lists up to 32kW of short-duration peak battery capability. That is a battery limit, not a promise that a complete bike will produce 32kW. A Beast 28kW motor build remains limited by the motor and the rest of the powertrain.
What is the difference between the AETOS GEN2 Pro and GEN2 Max?
The GEN2 Pro is a 72V / 1200A controller configuration, while the GEN2 Max is a 96V / 960A configuration. The correct option depends on the voltage and requirements of the complete powertrain. The Pro can suit appropriate 72V builds, while the Max is designed for suitable 96V builds. Final compatibility is checked for each bike.
Is the GEN2 Max automatically more powerful than the GEN2 Pro?
Not simply because it is called Max. The Pro and Max are designed for different voltage configurations. Actual bike output depends on the battery, controller settings, motor, wiring, connectors and tune. Controller selection should be based on the complete system rather than the model name alone.
Do I need to upgrade the controller, motor and battery together?
Not necessarily. A controller-only upgrade can provide better tuning, throttle control and increased output while retaining the factory battery and motor within their safe limits. As target power increases, the motor or battery may become the next limiting component.
Why does a complete performance build need a larger battery?
A high-output controller can only use the voltage and current the battery is capable of safely supplying. At higher power levels, a factory battery may become the limiting component through current restrictions, voltage sag or battery-management limits.
Does a 32kW battery make a Light Bee a 32kW bike?
No. The complete system is limited by its controller, motor, battery, wiring, connectors and tune. For example, a build using the Ventus Beast 28kW motor should be treated as a 28kW package even when paired with a battery capable of higher peak output.
Does the Pegasus battery make an Ultra Bee a 75kW bike?
No. The Pegasus battery rating describes battery capability, not complete-bike output. With either Beast or Ryuga, the safe output depends on the motor, controller, wiring, connectors, drivetrain and tune.
How fast will my bike go after a performance build?
Top speed depends on much more than peak power. Gearing, wheel and tyre size, motor RPM, battery voltage, controller settings, rider weight, terrain and aerodynamic drag all affect maximum speed. We do not guarantee a particular top speed from a powertrain upgrade.
Can the bike sustain its maximum power continuously?
Peak power is generally a short-duration capability. Sustained high-output riding creates heat in the motor, controller, battery, wiring and drivetrain. Safe sustained output will normally be lower than the maximum peak figure and depends heavily on tune, cooling and riding conditions.
Can a high-power build still be suitable for trail riding?
Yes. A high-capability powertrain does not have to operate at maximum output all the time. Compatible controllers can provide different riding modes and can be configured for smoother throttle response, reduced output or more aggressive performance depending on the rider's requirements.
Can Shock Moto install and tune the complete build?
Yes. Shock Moto offers installation and initial configuration through our Wellington workshop. Final requirements and labour depend on the bike, components, existing modifications and desired setup.
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